Taxonomic and phylogenetic implications in facial myology compared in Gymnotiformes and Siluriformes

• Grant number: 13/09926-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2013
• End date: April 30, 2018
• Field of knowledge: Biological Sciences - Zoology - Morphology of Recent Groups
• Principal Investigator: Mario Cesar Cardoso de Pinna
• Grantee: Luiz Antonio Wanderley Peixoto
• Host Institution: Museu de Zoologia (MZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 15/24709-4 - Phylogenetic and taxonomic implications in the comparative myology of the Siluriformes and Gymnotiformes, BE.EP.DR

Abstract

The objective of this project is to conduct a broad spectrum in facial myology orders Siluriformes and Gymnotiformes. The study will first redefine the hypotheses of homologies and nomenclature of facial muscles complex, with a detailed documentation of relevant variations in its different subgroups. Posteriorly, the results of the comparative study are summarized in form of discrete characters encoded to be appropriate for incorporation into a phylogenetic analysis. The project will fill a significant gap in understanding the anatomy of important components of freshwater fishes and also provide subsidies for understanding their diversity and evolution. This project will be based on material deposited in institutional collections in Brazil and international, and will include representatives of most subgroups phylogenetically relevant Siluriformes and Gymnotiformes. Outgroups, will be included taxa considered phylogenetically basal of Characiformes and Cypriniformes. The descriptive part of the work will include illustrations of all the relevant structures, using modern techniques of anatomical illustration. Subsequently, these characters will be added to arrays currently available for morphological hypotheses of phylogenetic relationship with broader empirical basis. The results of this work will be an important contribution to the understanding of the complex facial knowledge, which is important in the diversification of the major components of freshwater fishes, providing thus subsidies for elucidating phylogenetic relationships at different levels in these orders. (AU)

Scientific publications

(9)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GUSTAVO A. BALLEN; MURILO N. L. PASTANA; LUIZ A. W. PEIXOTO. A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis , a poorly-known species from the upper rio Paraguai basin. Neotropical Ichthyology, v. 14, n. 3, 2016-09-30. (11/50282-7, 13/09926-3, 15/24709-4, 16/02253-1)

MARINA BARREIRA MENDONÇA; LUIZ ANTÔNIO WANDERLEY PEIXOTO; GUILHERME MOREIRA DUTRA; ANDRÉ LUIZ NETTO-FERREIRA. A new miniature of Xenurobryconini (Characiformes: Characidae) from the rio Tapajós basin, Brazil. Neotropical Ichthyology, v. 14, n. 1, 2016-03-30. (13/09926-3, 11/50282-7)

DUTRA, GUILHERME MOREIRA; WANDERLEY PEIXOTO, LUIZ ANTONIO; DE SANTANA, CARLOS DAVID; WOSIACKI, WOLMAR BENJAMIN. A new species of Eigenmannia Jordan & Evermann (Teleostei: Gymnotiformes: Sternopygidae) from Rio Ventuari, Venezuela. Zootaxa, v. 4422, n. 1, p. 132-140, MAY 22 2018. (16/19075-9, 13/09926-3, 15/24709-4)

BALLEN, GUSTAVO A.; PASTANA, MURILO N. L.; PEIXOTO, LUIZ A. W.. A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis, a poorly-known species from the upper rio Paraguai basin. Neotropical Ichthyology, v. 14, n. 3, 2016. (11/50282-7, 14/11558-5, 15/24709-4, 16/02253-1, 13/09926-3)

SILVA, DANILLO S.; PEIXOTO, LUIZ A. W.; PIECZARKA, JULIO C.; WOSIACKI, WOLMAR B.; READY, JONATHAN S.; NAGAMACHI, CLEUSA Y.. Karyotypic and morphological divergence between two cryptic species of Eigenmannia in the Amazon basin with a new occurrence of XX/XY sex chromosomes (Gymnotiformes: Sternopygidae). Neotropical Ichthyology, v. 13, n. 2, p. 297-308, APR-JUN 2015. (13/09926-3)

WANDERLEY PEIXOTO, LUIZ ANTONIO; DUTRA, GUILHERME MOREIRA; WOSIACKI, WOLMAR BENJAMIN. The Electric Glass Knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. Zoological Journal of the Linnean Society, v. 175, n. 2, p. 384-414, OCT 2015. (13/09926-3)

PEIXOTO, LUIZ ANTONIO W.; WOSIACKI, WOLMAR B.. Eigenmannia besouro, a new species of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae) from the rio Sao Francisco basin, northeastern Brazil. Zootaxa, v. 4126, n. 2, p. 262-270, JUN 17 2016. (13/09926-3, 15/24709-4, 11/50282-7)

LUIZ A. W. PEIXOTO; BRANDON T. WALTZ. A new species of the Eigenmannia trilineata (Gymnotiformes: Sternopygidae) species group from the río Orinoco basin, Venezuela. Neotropical Ichthyology, v. 15, n. 1, 2017-03-30. (13/09926-3, 15/24709-4)

WANDERLEY PEIXOTO, LUIZ ANTONIO; DUTRA, GUILHERME MOREIRA; WOSIACKI, WOLMAR BENJAMIN. The Electric Glass Knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. 175, n. 2, p. 31-pg., 2015-10-01. (13/09926-3)